While existing studies examine how structural holes or closure networks independently affect organizational innovation performance, this body of work remains constrained by static and singular perspectives. The temporal dynamics of network structure transitions in R&D collaborations are examined. It is argued that organizations strategically transition between structural hole and closure networks across different phases of the innovation process, thereby forming an ambidextrous network transition pattern. Drawing on longitudinal network data from 784 U.S. biopharmaceutical firms and patent collaboration sequences spanning 15 years from 1998 onward, optimal matching analysis is employed to identify network transition patterns. The findings indicate that firms exhibiting a higher degree of transition between structural hole and closure networks achieve greater exploratory innovation but at the expense of exploitative innovation. Furthermore, the moderating roles of two partner network characteristics-tie stability and network status-are examined. By adopting a dynamic configurational perspective on network evolution, this research extends the literature on interorganizational networks and innovation while offering practical implications for managing collaborative innovation.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |